User manual

2920 1475 00

Instruction book

1 LEADING PARTICULARS

1.1 General description

GA90 up to GA315 and GA90 W up to GA315 W are single-

stage, oil-injected screw compressors, driven by an electric

motor and enclosed in a sound-insulated bodywork.

GA90 up to GA315 are air-cooled, abbreviated as "GA". GA90

W up to GA315 W are water-cooled, abbreviated as "GA W".

GA Full-feature (FF) compressors are provided with an air

dryer integrated in the bodywork. The system includes dryer

by-pass valves.

The compressors are available for a maximum working pressure

of:

- 7.5, 8.5, 10 or 13 bar(e) for 50 Hz versions

- 107, 132, 157 or 200 psig for 60 Hz versions

The compressors include mainly:

- Air filter(s)

- Compressor element 1)

- Air receiver/oil separator

- Air cooler

- Oil cooler(s)

- Drive motor

- Gear casing

- Unloader 1)

- Elektronikon

control system

- Safety devices

- Air dryer with by-pass valves (Full-feature compressors

only)

1 Oil coolers

2 Control panel

3 Electric cabinet

4 Power supply inlet

5 Vibration damper

6 Vibration damper

7 Gear casing

8 Compressor element

9 Oil stop valve

10 Check valve

11 Unloader

12 Air receiver

13 Minimum pressure valve

14 Cooling fan

M1 Drive motor

M25 Fan motor

Fig. 1.1 Front view, GA110 FF